{
	let num:number = 0;	
	let bolean:boolean = true;
	// if 语句
	if(bolean){
		num ++;
		console.log("if",num,'02.js');
	}

	// do while 语句
	do {
		num ++;
		console.log("doWhile",num,'02.js');
	} while (num > 10);

	// while 语句
	while (num < 1) {
		num ++;
		console.log("while",num,'02.js');
	}

	// 标签语句
	label:
		while (num < 10) {
			num ++;
			console.log("label",num,'02.js');
			break label;
		}

	// 
}